Multi-layer seed seedling raising box

Abstract

The utility model belongs to the technical field of agricultural seedling raising, particularly relates to a multi-layer seed seedling raising box, and provides the following scheme aiming at the problems of insufficient utilization of vertical space, non-uniform microenvironment and incapability of dynamically adjusting along with the growth of seedlings caused by fixed interlayer spacing of the existing multi-layer seedling raising box. Comprising a plurality of seedling raising outer boxes which are layered up and down, a folding supporting assembly, a seedling raising plate, a movable enclosure assembly and a hydraulic pushing assembly, and the hydraulic pushing assembly comprises a frame supporting rod, a driving push rod, a U-shaped guide pipe and a driven push rod; the folding supporting assembly comprises a strip-shaped bottom plate and a folding supporting plate and can be vertically folded and unfolded or horizontally unfolded. Through the linkage mechanism, the movable fences are lifted in the growth process of seedlings to increase the interlayer spacing, meanwhile, the seedling raising trays descend, the space in the box is dynamically optimized, the effective space is filled in the canopy of the seedlings, the ineffective space is reduced, uniform distribution of temperature, humidity and airflow is promoted, the space utilization rate is high, and orderly growth of the seedlings is facilitated.

Description

Technical Field

[0001] This utility model relates to a seedling box, specifically a multi-layer seed seedling box, belonging to the field of agricultural seedling technology. Background Technology

[0002] In the field of agricultural seedling technology, seedling boxes are devices specifically designed for seed germination and seedling cultivation. They provide suitable environmental conditions to promote seed germination and seedling growth. Traditional seedling boxes generally suffer from problems such as low space utilization and insufficient environmental control capabilities.

[0003] While existing technologies have introduced multi-layered seedling box designs to increase the seedling yield per unit area, they often overlook the dynamic changes in seedlings' space requirements at different growth stages. For example, a multi-layered seedling box disclosed in CN221979646U adjusts the overall space through the sliding cooperation of the base box and the expansion box. Although it can achieve initial compaction and growth expansion, its adjustment method is applied to the entire box and cannot achieve independent and precise control of the spacing between each layer. Furthermore, it lacks a linkage mechanism between the layers, leaving room for improvement in space utilization efficiency and microenvironment uniformity. Another example is a multi-layered adjustable forestry seedling box disclosed in CN221203510U, which uses a rotating component to rotate seedlings to ensure even light and water distribution, aiming to solve the problem of insufficient light and water for seedlings in the lower layers. However, its structure is complex and does not involve dynamically adjusting the spacing between layers according to the seedling height to optimize space utilization and microenvironment uniformity. Furthermore, while many seed culture boxes on the market (such as the RTOP-Y series) can precisely control environmental parameters such as temperature, humidity, and light, their internal structures are mostly fixed-layer racks. During the germination and early growth stages when seedlings are small, the vertical space between layers cannot be effectively compressed, resulting in a large amount of unused space. At the same time, the fixed height easily leads to air stratification between the upper and lower parts of the box, with hot air at the top and cold air at the bottom, causing inconsistent temperature environments for seedlings on different layers and affecting seedling uniformity. Currently, there is a lack of multi-layer seed culture boxes that can automatically, synchronously, and in reverse adjust the position of the movable barriers and seedling trays according to the seedling growth height, thereby continuously and dynamically filling the effective growth space, minimizing unused air space, promoting uniform distribution of temperature, humidity, and airflow, and simplifying operation. Utility Model Content

[0004] This invention provides a multi-layer seed seedling box to address the problems of insufficient vertical space utilization, uneven microenvironment, and inability to dynamically adjust with seedling growth caused by the fixed spacing between layers in existing multi-layer seedling boxes.

[0005] This utility model achieves the above-mentioned objectives through the following technical solution: a multi-layer seedling box, including a seedling outer box and a seedling tray. The seedling outer box is arranged in multiple layers. Folding support components are symmetrically arranged on the inner wall of the seedling outer box. The seedling tray is movably placed on the folding support components. A movable enclosure component is movably connected to the upper part of the seedling outer box. The movable enclosure component located in the lower layer is supported on the bottom surface of the seedling outer box of the upper layer. Hydraulic pushing components are symmetrically arranged inside the two sides of the seedling outer box. When the hydraulic pushing components push the movable enclosure components to move, the seedling tray moves in the opposite direction simultaneously.

[0006] The hydraulic actuation assembly includes a frame support rod, an active push rod, a U-shaped guide tube, and a driven push rod. The active push rod and the driven push rod are respectively movably inserted into both ends of the U-shaped guide tube. The upper end of the frame support rod is fixedly connected to the bottom of the movable enclosure assembly, and the bottom end of the driven push rod is connected to a folding support assembly.

[0007] The folding support assembly includes a strip base plate and a folding support plate. When the folding support plate is in a vertical folded-out state, it is tightly attached to the inner wall of the seedling box. When the folding support plate is in a horizontal unfolded state, it is tightly attached to the top of the strip base plate.

[0008] As a further improvement of this utility model: the top of the seedling outer box located at the top layer is movably connected to a top cover, the bottom of the seedling outer box located at the bottom layer is fixedly connected to a bottom plate, and the spacing between adjacent seedling outer boxes is adjustable.

[0009] As a further embodiment of this utility model: the upper part of the seedling outer box is provided with a ring-shaped movable enclosure cavity, and the movable enclosure component is movably inserted into the movable enclosure cavity. The movable enclosure component includes a perforated plate, a frame and a connecting support rod. The frame is provided with two frames, one at the top and one at the bottom, and the connecting support rod is fixedly connected at the four corners of the two frames. The perforated plate is fixedly connected between the two frames.

[0010] As a further improvement of this utility model: hydraulic chambers are symmetrically provided on both sides of the seedling outer box. The hydraulic chambers are located below the movable chamber of the enclosure. A piston is movably connected inside the hydraulic chamber. The bottom ends of the frame support rod and the active push rod are fixedly connected to the piston.

[0011] As a further improvement of this utility model: a C-shaped liquid guide tube is fixedly connected to the outside of each seedling box. The two ends of the C-shaped liquid guide tube are respectively connected to the bottom of the hydraulic chambers on both sides. The middle part of the C-shaped liquid guide tube is connected to a conveying pipe, and the other end of the conveying pipe is connected to an external hydraulic system.

[0012] As a further improvement of this utility model: the opening end of the U-shaped conduit is set vertically downward, and the inner cavity of the U-shaped conduit is filled with hydraulic oil instead of an active push rod.

[0013] As a further embodiment of this utility model: a slider is fixedly connected to the bottom end of the driven push rod, and limit grooves are symmetrically opened on both sides of the seedling outer box. The slider is moved and placed in the limit groove, and the slider body is fixedly connected to the middle part of the strip base plate.

[0014] As a further embodiment of this utility model: the strip base plate of the folding support assembly is vertically connected to the two ends of the connecting ear plates, the folding support plate is rotatably connected between the two connecting ear plates, the inner side of the connecting ear plate is connected to the limiting elastic protrusion, the two sides of the folding support plate are provided with limiting grooves, and the limiting elastic protrusion engages with the limiting groove when the folding support plate is in the vertical folding state.

[0015] As a further embodiment of this utility model: the bottom of the seedling tray is symmetrically provided with support plate slots, which engage with the support plate slots when the folded support plate is in a horizontally unfolded state. A seedling board is fixedly connected inside the seedling tray, and the seedling board has several seedling holes.

[0016] The beneficial effects of this utility model are:

[0017] 1. This utility model includes a seedling outer box and seedling trays. Multiple seedling outer boxes are arranged in a layered configuration. Folding support components are symmetrically arranged on the inner wall of each seedling outer box. The seedling trays are movably secured to these folding support components. A movable enclosure component is movably connected to the upper part of the seedling outer box, with the lower enclosure component supporting the bottom surface of the upper seedling outer box. Hydraulic pushing components are symmetrically arranged inside the two sides of the seedling outer box. When the hydraulic pushing components move the movable enclosure components, they simultaneously drive the seedling trays to move in the opposite direction. By using multiple layered seedling outer boxes, multi-layer seedling cultivation can be carried out in three-dimensional space, improving seedling cultivation efficiency. By setting up movable enclosure components, with the lower movable enclosure component supporting the bottom of the upper seedling box, the movable enclosure component can be raised periodically during seedling growth to adjust the layer spacing. This avoids wasting vertical space during the budding and early growth stages when seedlings are short, thereby maximizing space utilization, increasing the total number of seedling layers, and more rationally allocating space within the box. As the movable enclosure component rises, the seedling trays descend, ensuring that the seedling canopy fills the entire box as much as possible, reducing ineffective air space, promoting uniform distribution of temperature, humidity, and airflow, which is conducive to the uniform growth of all seedlings and improves the uniformity of the finished seedlings.

[0018] 2. The hydraulic push assembly of this utility model includes a frame support rod, an active push rod, a U-shaped guide tube, and a driven push rod. The active push rod and the driven push rod are respectively movably inserted into both ends of the U-shaped guide tube. The upper end of the frame support rod is fixedly connected to the bottom of the movable enclosure assembly. The bottom end of the driven push rod is connected to a folding support assembly. The hydraulic transmission of the hydraulic push assembly ensures smooth and synchronous movement, reduces mechanical failures, and enables the linkage of the hydraulic push assembly driving the movable enclosure assembly to move while simultaneously driving the seedling tray to move in the opposite direction.

[0019] 3. The folding support component of this utility model includes a strip-shaped base plate and a folding support plate. When the folding support plate is in a vertically folded state, it is tightly attached to the inner wall of the seedling outer box. When the folding support plate is in a horizontally unfolded state, it is tightly attached to the top of the strip-shaped base plate. When the folding support plate is in a vertically folded state, it can save space and is easy to store. When the folding support plate is in a horizontally unfolded state, it can provide stable support. Furthermore, the folding support plate can be folded and arranged so that the seedling trays can be placed inside the seedling outer box in sequence. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall retractable structure of the seedling box of this utility model;

[0021] Figure 2 This is a schematic diagram of the overall lifting structure of the seedling box of this utility model;

[0022] Figure 3 This is a schematic diagram of the structure of the movable enclosure component of this utility model;

[0023] Figure 4 This is a schematic cross-sectional view of the movable enclosure component of this utility model in the raised state;

[0024] Figure 5 This utility model Figure 4 Schematic diagram of the structure at point A in the middle;

[0025] Figure 6 This is a schematic cross-sectional view of the movable enclosure component of this utility model in its extended or retracted state.

[0026] Figure 7 This utility model Figure 6 Schematic diagram of the structure at point B;

[0027] Figure 8 This is a schematic diagram of the C-type liquid guide tube structure of this utility model;

[0028] Figure 9 This is a schematic diagram of the disassembled structure of the folding support component of this utility model;

[0029] Figure 10 This is a cross-sectional structural diagram of the connection between the seedling tray and the seedling outer box of this utility model;

[0030] Figure 11 This is a schematic diagram of the cross-sectional structure of the seedling tray of this utility model.

[0031] In the diagram: 1. Top cover; 2. Seedling outer box; 21. Mesh plate; 22. Frame; 23. Connecting support rod; 24. C-shaped liquid guide tube; 25. Enclosure movable cavity; 26. Frame support rod; 27. Active push rod; 28. U-shaped guide tube; 29. ​​Driven push rod; 210. Limiting groove; 211. Sliding block; 212. Hydraulic cavity; 213. Piston; 214. Delivery pipe; 3. Base plate; 4. Folding support assembly; 41. Strip base plate; 42. Folding support plate; 43. Connecting ear plate; 44. Limiting elastic protrusion; 45. Limiting groove; 5. Seedling tray; 51. Support plate slot; 52. Seedling board; 53. Seedling hole. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] Example 1

[0034] like Figures 1 to 11 As shown, a multi-layer seedling box includes a seedling outer box 2 and seedling trays 5. Multiple seedling outer boxes 2 are arranged in an upper and lower layered configuration. Folding support components 4 are symmetrically arranged on the inner wall of the seedling outer box 2. The seedling trays 5 are movably secured to the folding support components 4. A movable enclosure component is movably connected to the upper part of the seedling outer box 2, with the lower movable enclosure component supporting the bottom surface of the upper seedling outer box 2. Hydraulic pushing components are symmetrically arranged inside the two sides of the seedling outer box 2. When the hydraulic pushing components move the movable enclosure components, they simultaneously drive the seedling trays 5 to move in the opposite direction. By setting multiple upper and lower layered seedling outer boxes 2, multi-layer seedling cultivation can be carried out in three-dimensional space. To improve seedling efficiency, a movable enclosure component is installed, with the lower layer supported on the bottom of the upper seedling outer box 2. During seedling growth, the movable enclosure component can be periodically raised to adjust the layer spacing, avoiding wasting vertical space during the budding and early growth stages when seedlings are short. This maximizes space utilization, increases the total number of seedling layers, and allows for more rational allocation of space within the box. As the movable enclosure component rises, the seedling tray 5 descends, ensuring that the seedling canopy fills the entire box as much as possible, reducing ineffective air space, promoting uniform distribution of temperature, humidity, and airflow, and facilitating the uniform growth of all seedlings, thus improving the uniformity of the finished seedlings.

[0035] The hydraulic push assembly includes a frame support rod 26, an active push rod 27, a U-shaped guide tube 28, and a driven push rod 29. The active push rod 27 and the driven push rod 29 are respectively movably inserted into both ends of the U-shaped guide tube 28. The upper end of the frame support rod 26 is fixedly connected to the bottom of the movable enclosure assembly. The bottom end of the driven push rod 29 is connected to the folding support assembly 4. The hydraulic transmission of the hydraulic push assembly ensures smooth and synchronous movement, reduces mechanical failures, and enables the linkage of the hydraulic push assembly driving the movable enclosure assembly to move while simultaneously driving the seedling tray 5 to move in the opposite direction.

[0036] The folding support assembly 4 includes a strip base plate 41 and a folding support plate 42. When the folding support plate 42 is in a vertical folded state, it is close to the inner wall of the seedling outer box 2. When the folding support plate 42 is in a horizontal unfolded state, it is close to the top of the strip base plate 41. When the folding support plate 42 is in a vertical folded state, it can save space and is easy to store. When the folding support plate 42 is in a horizontal unfolded state, it can provide stable support. The folding support plate 42 can be folded and arranged so that the seedling trays 5 can be placed in the seedling outer box 2 in sequence.

[0037] Example 2

[0038] Improvements based on Example 1:

[0039] like Figures 1 to 8 As shown, the top of the seedling outer box 2 is movably connected to a top cover 1, and the bottom of the seedling outer box 2 is fixedly connected to a bottom plate 3. The spacing between adjacent seedling outer boxes 2 is adjustable. The seedling boxes can be easily opened and closed through the top cover 1 for operations such as sowing, watering, fertilizing, and observation, while protecting the seedlings from external environmental disturbances such as dust, pests, or temperature fluctuations. The bottom plate 3 provides stable foundation support, preventing the seedling boxes from tilting or sliding during movement or use, enhancing safety and durability. The adjustable spacing between adjacent seedling outer boxes 2 allows for flexible adjustment of the distance between layers according to the growth height of the seedlings. When the seedlings are short, the layer spacing can be compressed to increase the number of seedling layers, maximizing the use of vertical space and increasing the seedling capacity per unit area. When the seedlings grow taller, the layer spacing can be expanded to avoid overcrowding and ensure that each seedling receives sufficient light, air, and growing space. This allows the seedling boxes to adapt to the needs of different plant species or different growth stages, achieving dynamic and precise environmental control.

[0040] Furthermore, the upper part of the seedling outer box 2 has a ring-shaped movable enclosure 25. The movable enclosure assembly is movably installed inside the movable enclosure 25. The movable enclosure assembly includes a mesh plate 21, a frame 22, and connecting support rods 23. The frame 22 has two parts, upper and lower, and the connecting support rods 23 are fixedly connected to the four corners of the two frames 22. The mesh plate 21 is fixedly connected between the two frames 22. The ring-shaped movable enclosure 25 provides smooth vertical movement space for the movable enclosure assembly, ensuring that it will not get stuck or obstructed when adjusted to different heights. The movable enclosure assembly uses a frame... The frame structure enhances stability and strength, preventing deformation or damage when moving or supporting the upper seedling outer box 2. The perforated plate 21 provides ventilation and light transmission. The perforated design allows air circulation, regulates humidity and temperature inside the box, prevents mold growth and heat accumulation, and at the same time ensures uniform light distribution, promoting seedling photosynthesis. As the movable enclosure components move upward, more of the perforated plate 21 is exposed, gradually increasing the ventilation effect to adapt to the increased airflow demand during seedling growth. This helps create a uniform microenvironment, reduces temperature stratification between upper and lower layers, and ensures that all seedlings grow under similar conditions.

[0041] Furthermore, hydraulic chambers 212 are symmetrically provided on both sides of the seedling outer box 2. The hydraulic chambers 212 are located below the movable enclosure chamber 25. A piston 213 is movably connected inside the hydraulic chamber 212. The bottom ends of the frame support rod 26 and the active push rod 27 are fixedly connected to the piston 213. The piston 213 can move in response to hydraulic changes within the hydraulic chamber 212. When the piston 213 moves, it can directly drive the frame support rod 26 and the active push rod 27 to move. Therefore, the movement of the piston 213 controls the lifting and lowering of the movable enclosure assembly. The active push rod 27 is linked with the driven push rod 29 through the U-shaped guide tube 28 to realize the reverse movement of the movable enclosure assembly and the seedling tray 5, making the layer spacing adjustment smoother and more controllable, and adapting to the continuous changes in seedling growth.

[0042] Furthermore, each seedling outer box 2 is fixedly connected to a C-shaped liquid guide pipe 24 on the outside of the box body. The two ends of the C-shaped liquid guide pipe 24 are respectively connected to the bottom ends of the two hydraulic chambers 212. The middle part of the C-shaped liquid guide pipe 24 is connected to a delivery pipe 214, and the other end of the delivery pipe 214 is connected to an external hydraulic system. The C-shaped liquid guide pipe 24 can simultaneously deliver or output hydraulic oil of equal pressure to the two hydraulic chambers 212 to ensure that the pressure in the two hydraulic chambers 212 is consistent and to promote the synchronous movement of the piston 213.

[0043] Furthermore, the opening end of the U-shaped conduit 28 is set vertically downward. The inner cavity of the U-shaped conduit 28, excluding the space occupied by the active push rod 27 and the driven push rod 29, is filled with hydraulic oil. The interior of the U-shaped conduit 28, except for the space occupied by the active push rod 27 and the driven push rod 29, is filled with hydraulic oil. The hydraulic oil serves as the pressure transmission medium. When the active push rod 27 moves due to the movement of the piston 213, the pressure is evenly transmitted to the driven push rod 29 through the hydraulic oil, thereby realizing the reverse synchronous movement of the movable enclosure assembly and the seedling tray 5. It should be noted that a return spring can also be fitted on the rod of the driven push rod 29 inserted in the U-shaped conduit 28 to facilitate the reset of the folding support assembly 4, thereby meeting the subsequent seedling use requirements.

[0044] Furthermore, a slider 211 is fixedly connected to the bottom end of the driven push rod 29. Limiting grooves 210 are symmetrically opened on both sides of the seedling outer box 2. The slider 211 is movably placed in the limiting groove 210. The block body of the slider 211 is fixedly connected to the middle part of the strip base plate 41. By using the cooperation of the slider 211 and the limiting groove 210, the movement of the driven push rod 29 can be guided and restricted, so that the slider 211 can only slide within the track of the limiting groove 210, ensuring that the movement direction of the driven push rod 29 is straight and stable, and avoiding deflection or rotation.

[0045] like Figure 5 , Figure 7 and Figure 9 As shown, the strip base plate 41 of the folding support assembly 4 is vertically connected to two connecting ear plates 43 at both ends. The folding support plate 42 is rotatably connected between the two connecting ear plates 43. The inner side of the connecting ear plates 43 is connected to a limiting elastic protrusion 44. The two sides of the folding support plate 42 are provided with limiting grooves 45. When the folding support plate 42 is in the vertical folding state, the limiting elastic protrusion 44 engages with the limiting groove 45. When the folding support plate 42 is bent by external force, it can rotate around the connecting ear plates 43, thereby realizing the switching between the vertical folding and horizontal unfolding states of the folding support plate 42. The engagement of the elastic protrusion 44 and the limiting groove 45 ensures that the folding support plate 42 is firmly fixed in the vertical position and will not be accidentally unfolded due to vibration or movement. When it needs to be unfolded, the folding support plate 42 can be rotated to the horizontal position, and the elastic protrusion 44 and the limiting groove 45 are separated. At this time, the folding support plate 42 is close to the strip base plate 41, providing a stable support surface for supporting the seedling tray 5. When taking out or putting in the lower seedling tray 5, it is only necessary to use external force to lift and fold the upper folding support plate 42. At this time, it will not obstruct the lower seedling tray 5, making it convenient to take out or put in the seedling tray 5.

[0046] like Figure 10 and Figure 11As shown, the bottom of the seedling tray 5 is symmetrically provided with support plate slots 51. When the folded support plate 42 is in a horizontally unfolded state, the support plate slots 51 are engaged with the support plate slots 51. A seedling board 52 is fixedly connected inside the seedling tray 5. The seedling board 52 has several seedling holes 53. The engagement of the support plate slots 51 with the folded support plate 42 allows the seedling tray 5 to be firmly fixed on the folded support plate 42, preventing it from sliding or tilting during movement or adjustment, thus ensuring the stability and safety of the seedling tray 5. The seedling holes 53 on the seedling board 52 are used to place seeds or seedlings, providing independent growth space, avoiding root entanglement, facilitating individual management and transplanting, and maximizing the use of the space inside the tray through the seedling holes 53, thereby improving seedling efficiency and yield.

[0047] Working principle: There are multiple seedling outer boxes 2 arranged in an upper and lower layer. Each seedling outer box 2 has a folding support component 4 symmetrically arranged on the inner wall. First, the seedling tray 5 is placed on the folding support component 4. In the initial stage, when the seeds are in the germination period or early growth stage, the seedlings are relatively short. At this time, the spacing between adjacent seedling outer boxes 2 is adjusted to make it smaller, thereby compressing the layer height and increasing the total number of seedling layers to maximize the use of vertical space. At the same time, the movable enclosure component is movably connected to the upper part of the seedling outer box 2 and the movable enclosure component located in the lower layer supports the bottom surface of the seedling outer box 2 above it, forming a stable stacking structure.

[0048] As the seedlings grow taller, the external hydraulic system delivers hydraulic oil to the C-shaped liquid guide pipe 24 via the delivery pipe 214. The hydraulic oil flows into the hydraulic cavities 212 symmetrically opened on both sides of the seedling outer box 2. The piston 213, which is movably connected in the hydraulic cavity 212, moves upward under hydraulic pressure. The movement of the piston 213 drives the frame support rod 26 and the active push rod 27, which are fixedly connected to it, to rise together. The frame support rod 26 pushes the movable enclosure assembly upward, thereby increasing the interlayer spacing to accommodate the increased height of the seedlings. As the movable enclosure assembly rises, more mesh plates 21 are exposed, gradually increasing the ventilation effect, regulating the humidity and temperature inside the box, and promoting uniform air distribution. At the same time, the active push rod 27... Rod 27 moves upward within the U-shaped guide tube 28. The inner cavity of the U-shaped guide tube 28, where neither the active push rod 27 nor the driven push rod 29 is inserted, is filled with hydraulic oil. The hydraulic oil, as a pressure transmission medium, transmits the movement of the active push rod 27 evenly to the driven push rod 29 through fluid pressure, causing the driven push rod 29 to move downward. This, in turn, drives the strip-shaped bottom plate 41 of the folding support assembly 4 to move downward, which in turn drives the seedling tray 5 to move downward simultaneously. This achieves the reverse linkage of the seedling tray 5 descending while the movable enclosure assembly rises. In this way, the seedling canopy always fills the entire box space as much as possible, reducing ineffective air areas and promoting uniform temperature, humidity, and airflow, which is conducive to the uniform growth of all seedlings.

[0049] When it is necessary to take out or put out the seedling tray 5, the folding support plate 42 switches from the horizontally unfolded state to the vertically folded state, at which point the seedling tray 5 can be taken out smoothly.

[0050] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0051] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A multi-layer seedling box, comprising an outer seedling box (2) and a seedling tray (5), characterized in that: The seedling outer box (2) is arranged in multiple layers. The inner wall of the seedling outer box (2) is symmetrically provided with folding support components (4). The seedling tray (5) is movably placed on the folding support components (4). The upper part of the seedling outer box (2) is movably connected with a movable enclosure component. The movable enclosure component located in the lower layer is supported on the bottom surface of the seedling outer box (2) above it. The two sides of the seedling outer box (2) are symmetrically provided with hydraulic push components. When the hydraulic push component pushes the movable enclosure component to move, it simultaneously drives the seedling tray (5) to move in the opposite direction. The hydraulic push assembly includes a frame support rod (26), an active push rod (27), a U-shaped guide tube (28), and a driven push rod (29). The active push rod (27) and the driven push rod (29) are respectively movably inserted into the two ends of the U-shaped guide tube (28). The upper end of the frame support rod (26) is fixedly connected to the bottom of the movable enclosure assembly. The bottom end of the driven push rod (29) is connected to a folding support assembly (4). The folding support assembly (4) includes a strip base plate (41) and a folding support plate (42). When the folding support plate (42) is in a vertical folding state, it is closely attached to the inner wall of the seedling outer box (2). When the folding support plate (42) is in a horizontal unfolding state, it is closely attached to the top of the strip base plate (41).

2. The multi-layer seedling tray according to claim 1, characterized in that: The top of the seedling outer box (2) located at the top layer is movably connected to the top cover (1), and the bottom of the seedling outer box (2) located at the bottom layer is fixedly connected to the bottom plate (3). The spacing between adjacent seedling outer boxes (2) is adjustable.

3. The multi-layer seedling tray according to claim 1, characterized in that: The seedling outer box (2) has a ring-shaped movable enclosure cavity (25) at the upper end of the box body. The movable enclosure assembly is movably inserted into the movable enclosure cavity (25). The movable enclosure assembly includes a mesh plate (21), a frame (22) and a connecting support rod (23). The frame (22) is provided with two frames, one at the top and one at the bottom, and the connecting support rod (23) is fixedly connected at the four corners of the two frames (22). The mesh plate (21) is fixedly connected between the two frames (22).

4. The multi-layer seedling tray according to claim 3, characterized in that: Hydraulic chambers (212) are symmetrically provided on both sides of the seedling outer box (2). The hydraulic chambers (212) are located below the enclosure movable chamber (25). A piston (213) is movably connected inside the hydraulic chamber (212). The bottom ends of the frame support rod (26) and the active push rod (27) are fixedly connected to the piston (213).

5. The multi-layer seedling tray according to claim 4, characterized in that: Each seedling outer box (2) is fixedly connected to a C-shaped liquid guide tube (24) on the outside of the box body. The two ends of the C-shaped liquid guide tube (24) are respectively connected to the bottom ends of the two hydraulic chambers (212). The middle part of the C-shaped liquid guide tube (24) is connected to a delivery pipe (214), and the other end of the delivery pipe (214) is connected to an external hydraulic system.

6. The multi-layer seedling tray according to claim 1, characterized in that: The opening end of the U-shaped conduit (28) is set vertically downward. The inner cavity of the U-shaped conduit (28) without the active push rod (27) and the driven push rod (29) is filled with hydraulic oil.

7. The multi-layer seedling tray according to claim 1, characterized in that: The bottom end of the driven push rod (29) is fixedly connected to a slider (211). The seedling outer box (2) has symmetrically opened limit grooves (210) on both sides of the box body. The slider (211) is movably placed in the limit groove (210). The block body of the slider (211) is fixedly connected to the middle part of the strip base plate (41).

8. The multi-layer seedling tray according to claim 1, characterized in that: The strip base plate (41) of the folding support assembly (4) is vertically connected to the two ends of the connecting ear plate (43). The folding support plate (42) is rotatably connected between the two connecting ear plates (43). The inner side of the connecting ear plate (43) is connected to the limiting elastic protrusion (44). The two sides of the folding support plate (42) are provided with limiting grooves (45). When the folding support plate (42) is in the vertical folding state, the limiting elastic protrusion (44) engages with the limiting groove (45).

9. The multi-layer seedling tray according to claim 1, characterized in that: The bottom of the seedling tray (5) is symmetrically provided with support plate slots (51). When the folded support plate (42) is in a horizontally unfolded state, the support plate slots (51) are engaged with the support plate slots (51). The seedling tray (5) is fixedly connected to the inside of the seedling tray (5). The seedling plate (52) has several seedling holes (53) on its body.

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